An apparatus, computer program product and method of analyzing non-stationary time varying phenomena. A representation of a non-stationary time varying phenomenon is recursively sifted using Empirical Mode Decomposition (EMD) to extract intrinsic mode functions (IMFs). The representation is filtered to extract intrinsic trends by combining a number of IMFs. The intrinsic trend is inherent in the data and identifies an IMF indicating the variability of the phenomena. The trend also may be used to detrend the data.
CROSS REFERENCE TO RELATED APPLICATIONS
The present application is a continuation of U.S. Provisional Patent Application Ser. No. 60/510,678 filed Oct. 9, 2003 and related to U.S. Pat. No. 6,782,124 entitled "Three Dimensional Empirical Mode Decomposition Analysis Apparatus Method and Article of Manufacture" to Per Gloersen, assigned to the assignee of the present invention.
